Turning an email into a task is a great way to clear your inbox and help you achieve Inbox Zero - if that's your style of working. If you have a busy inbox, tasks can sometimes get forgotten as other emails fly in; this can help address that issue.

Oops! You didn't mean to hit send on that email yet. No worries, in Gmail, you have up to 30 seconds to undo the sending of that email.

You can set up an auto-reply for specific emails, such as external emails.

When sending sensitive information via email you can use Confidential Mode in Gmail.